Rather than two friends, I'd have two rivals face Faren. I've always imagined a strong rivalry between Lucy Pinder and Rosie Jones. I'd have Rosie step up first and get squashed, then have Lucy step in and show her how it's done, prompting Rosie to challenge Lucy later to salvage her pride.
I would almost reverse that, with Lucy getting squashed and Rosie squashing Faren just to upstage Lucy, prompting a challenge from Lucy to put Rosie in her place, but as great as that would be, I think the first scenario is more realistic.